CN201791157U - Sustainable positive pressure needleless connecting component - Google Patents
Sustainable positive pressure needleless connecting component Download PDFInfo
- Publication number
- CN201791157U CN201791157U CN2010205306152U CN201020530615U CN201791157U CN 201791157 U CN201791157 U CN 201791157U CN 2010205306152 U CN2010205306152 U CN 2010205306152U CN 201020530615 U CN201020530615 U CN 201020530615U CN 201791157 U CN201791157 U CN 201791157U
- Authority
- CN
- China
- Prior art keywords
- liquid
- valve
- valve seat
- sebific duct
- positive pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a sustainable positive pressure needleless connecting component. The sustainable positive pressure needleless connecting component comprises a connecting part and a sustainable positive pressure element matched with the connecting part, wherein the sustainable positive pressure element comprises a collapsible rubber tube and a capillary tube communicated with the rubber tube; and a non-return valve joint is arranged at the top end of the rubber tube, the rubber tube and the capillary tube constitute a liquid medicine channel communicated with the liquid channel inside the connecting part, and a filter is mounted on the liquid medicine channel. By adopting the sustainable positive pressure needleless connecting component, the procedures of sealing and washing the tube repeatedly are reduced, the nursing working capacity is relieved, the working efficiency is improved, and when an infusion apparatus or an injector is drawn out, the positive pressure needleless connecting part is used for pushing the liquid medicine forward instantly, and the rubber tube is used for pushing the liquid medicine forward slowly without sealing the tube, so as to ensure that the pressure is kept in a detaining needle conduit until releasing the liquid medicine in the rubber tube, the tube blocking rate and the incidence rate of the phlebitis are reduced, and the pain of patients can be relieved; and the acupuncture risk of the doctors and nurses is reduced through needleless operation.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, relates in particular to a kind of needleless coupling assembling of sustainable generation malleation.
Background technology
Existing malleation needleless coupling assembling comprises valve casing, valve rod, spring, valve seat.During use, when transfusion device or syringe are extracted, can produce malleation, can be pushed forward into medicinal liquid, avoid blood to reflux and form thrombosis, reduce the plugging rate.In practical operation,, when remaining needle withdraws from, also need a spot of tube sealing no matter be transfusion device or syringe.
Summary of the invention
This utility model purpose is: a kind of sustainable malleation needleless coupling assembling is provided, can alleviate nursing work load with supporting uses such as remaining needles, increase work efficiency, reduce phlebitic incidence rate simultaneously, simultaneously when transfusion device or syringe are extracted, malleation needleless coupling assembling can be pushed forward into medicinal liquid moment, the sebific duct of continuous positive pressure spare slowly is pushed forward into medicinal liquid continuously, make and remaining normal pressure in the indwelling needle catheter, finish until the release of capsule inner liquid medicine, do not need tube sealing fully, avoided blood to reflux and formed thrombosis, avoid the generation of plugging, alleviate the misery of sufferer.
The technical solution of the utility model is: a kind of sustainable malleation needleless coupling assembling, the continuous positive pressure spare that comprises connector, is used with connector, but described continuous positive pressure spare comprises the sebific duct of breathing, the capillary tube that is communicated with sebific duct, described sebific duct top is provided with the check valve joint, described sebific duct forms the medicinal liquid path that is connected with the fluid passage of connector inside with capillary tube, on the described medicinal liquid path filter is housed.
The further technical scheme of this utility model is: a kind of sustainable malleation needleless coupling assembling, the continuous positive pressure spare that comprises connector, is used with connector, but described continuous positive pressure spare comprises the sebific duct of breathing, the capillary tube that is communicated with sebific duct, described sebific duct top is provided with the check valve joint, described sebific duct forms the medicinal liquid path that is connected with the fluid passage of connector inside with capillary tube, on the described medicinal liquid path filter is housed; The outside of described continuous positive pressure spare is provided with shell, and sebific duct and capillary tube are loaded in the shell, and the check valve joint at sebific duct top is positioned at the outside of shell; Described connector is that malleation needleless connector or two leads to fitting or three-way connector; Described connector and continuous positive pressure spare are structure as a whole, and perhaps a plurality of absolute construction for being fixed together perhaps are a plurality of independent structure of using simultaneously; Described malleation needleless connector comprises valve casing, valve rod, spring, valve seat; Described valve casing and valve seat are hollow structure, valve casing is set in the outside of valve seat, and be connected with valve base sealing, the upper end of described valve casing is provided with the liquid inlet, the lower end of valve seat is provided with liquid outlet, be provided with liquid flow path between liquid inlet and liquid outlet, the bottom of described valve seat is provided with steam vent; The lower end of described valve rod is stretched in the cavity of valve seat, and described spring is arranged between valve rod and the valve seat cavity floor; The top and bottom of described valve rod are respectively equipped with groove, and sealing ring and lower seal are housed respectively in the groove, and described lower seal is divided into the cavity of valve seat to the inner chamber of liquid inlet sealing and the exocoel of opening to the liquid inlet; Described filter is installed on the capillary tube, perhaps is installed on the sebific duct inner bottom, perhaps is installed on the check valve joint; Described continuous positive pressure spare also comprises connection tube, and described connection tube is installed on the lower end of sebific duct, and described filter is loaded between connection tube and the capillary tube, and the inlet of filter links to each other with the outlet of connection tube, and the outlet of filter links to each other with inlet capillaceous.
The more detailed technical scheme of this utility model is: a kind of sustainable malleation needleless coupling assembling, the continuous positive pressure spare that comprises connector, is used with connector, but described continuous positive pressure spare comprises the sebific duct of breathing, the capillary tube that is communicated with sebific duct, described sebific duct top is provided with the check valve joint, described sebific duct forms the medicinal liquid path that is connected with the fluid passage of connector inside with capillary tube, on the described medicinal liquid path filter is housed; The outside of described continuous positive pressure spare is provided with shell, and sebific duct and capillary tube are loaded in the shell, and the check valve joint at sebific duct top is positioned at the outside of shell; Described connector is that malleation needleless connector or two leads to fitting or three-way connector; Described connector and continuous positive pressure spare are structure as a whole, and perhaps a plurality of absolute construction for being fixed together perhaps are a plurality of independent structure of using simultaneously; Described malleation needleless connector comprises valve casing, valve rod, spring, valve seat; Described valve casing and valve seat are hollow structure, valve casing is set in the outside of valve seat, and be connected with valve base sealing, the upper end of described valve casing is provided with the liquid inlet, the lower end of valve seat is provided with liquid outlet, be provided with liquid flow path between liquid inlet and liquid outlet, the bottom of described valve seat is provided with steam vent; The lower end of described valve rod is stretched in the cavity of valve seat, and described spring is arranged between valve rod and the valve seat cavity floor; The top and bottom of described valve rod are respectively equipped with groove, and sealing ring and lower seal are housed respectively in the groove, and described lower seal is divided into the cavity of valve seat to the inner chamber of liquid inlet sealing and the exocoel of opening to the liquid inlet; Described filter is installed on the capillary tube, perhaps is installed on the sebific duct inner bottom, perhaps is installed on the check valve joint; Described continuous positive pressure spare also comprises connection tube, and described connection tube is installed on the lower end of sebific duct, and described filter is loaded between connection tube and the capillary tube, and the inlet of filter links to each other with the outlet of connection tube, and the outlet of filter links to each other with inlet capillaceous; Described check valve joint is for being with externally threaded 6:100 female Luer, perhaps for being with externally threaded non-6:100 interface; Described sebific duct is an isoamyl ethylene sebific duct, is perhaps made by natural rubber, and it has the expansion contractility; Described capillary tube is medical plastic pipe or metal tube; Described valve casing is a two-port valve, and the outside, liquid inlet of described two-port valve is provided with male connection; Perhaps valve casing is a three-way valve, the outside, liquid inlet of three-way valve is provided with male connection, the arm of three-way valve is connected with liquid flow path, and described arm upper end is provided with the 6:100 female Luer or the non-6:100 interface of standard, and described female Luer is equipped with the sealing end cap; Be provided with a cavity that is opened on its bottom surface in the described valve rod, cavity floor is provided with fixed leg on; The last sealing ring of described valve rod and the inwall of described liquid inlet are interference fit, are interference fit between the inwall of the cavity of lower seal and valve seat; The end face of described valve rod is an inclined-plane, and perhaps end face is provided with and is three salient points that equilateral triangle distributes; Described valve seat bottom is provided with several voltage supply steam vent that air discharges that contracts, described valve seat bottom is provided with liquid-through hole, described liquid-through hole is arranged between liquid flow path and the described liquid outlet and with liquid flow path and liquid outlet and is connected, from the effusive liquid of liquid flow path by the outlet of liquid-through hole influent; The cavity floor of described valve seat is provided with fixed leg; Described spring upper end is set on the last fixed leg of valve rod, and the lower end is set on the following fixed leg of valve seat; Between described valve seat and the valve casing sealing ring is housed, by heat seal or the supersonic thermal setting encapsulation of heating.
The utility model has the advantages that:
1. this utility model has reduced the repeated multiple times tube sealing, the washing pipe program, alleviated nursing work load, improved work efficiency, also reduced simultaneously phlebitic incidence rate, simultaneously when transfusion device or syringe are extracted, malleation needleless coupling assembling can be pushed forward into medicinal liquid moment, capsule is slowly continual to be pushed forward into medicinal liquid, make and remaining pressure in the indwelling needle catheter, finish until the release of capsule inner liquid medicine, do not need tube sealing fully, this moment, remaining needle reached the time of replacing, make whole therapeutic process avoid the blood backflow to form thrombosis and cause plugging, alleviated the misery of sufferer;
2. this utility model adopts the needleless operation, has reduced medical personnel's acupuncture risk.
Description of drawings
Below in conjunction with drawings and Examples this utility model is further described:
Structural representation when Fig. 1 is in closed condition for embodiment one;
Structural representation when Fig. 2 is in open mode for embodiment one;
Structural representation when Fig. 3 is in closed condition for embodiment two;
Structural representation when Fig. 4 is in open mode for embodiment two
Fig. 5 is the structural representation of embodiment three;
Fig. 6 is the structural representation of embodiment four.
Wherein: 1 is malleation needleless connector; 11 is valve casing; 12 is valve rod; 13 is spring; 14 is valve seat; 15 is the liquid inlet; 16 is liquid outlet; 17 is liquid flow path; 18 is steam vent; 19 is sealing ring; 110 is last sealing ring; 111 is lower seal; 112 is inner chamber; 113 is exocoel; 114 is arm; 115 is female Luer; 116 is cavity; 117 is liquid-through hole; 118 are following fixed leg; 119 is the inclined-plane; 120 is last fixed leg;
2 is continuous positive pressure spare; 21 is shell; 22 is sebific duct; 23 is the check valve joint; 24 is capillary tube; 25 is connection tube; 26 is filter;
3 is two to lead to fitting; 4 is three-way connector.
The specific embodiment
Embodiment one: a kind of sustainable malleation needleless coupling assembling, as shown in Figure 1 and Figure 2, the continuous positive pressure spare 2 that comprises connector, is used with connector, but described continuous positive pressure spare 2 comprises the sebific duct 22 of breathing, the capillary tube 24 that is communicated with sebific duct 22, described sebific duct 22 tops are provided with check valve joint 23, described sebific duct 22 forms the medicinal liquid path that is connected with the fluid passage of connector inside with capillary tube 24, on the described medicinal liquid path filter 26 is housed; The outside of described continuous positive pressure spare 2 is provided with shell 21, and sebific duct 22 and capillary tube 24 are loaded in the shell 21, and the check valve joint 23 at sebific duct 22 tops is positioned at the outside of shell 21.Described continuous positive pressure spare 2 also comprises connection tube 25, described connection tube 25 is installed on the lower end of sebific duct 22, described filter 26 is loaded between connection tube 25 and the capillary tube 24, and the inlet of filter 26 links to each other with the outlet of connection tube 25, and the outlet of filter 26 links to each other with the inlet of capillary tube 24.
Described check valve joint 23 is for being with externally threaded 6:100 female Luer; Described sebific duct 22 is made or is made by other macromolecular material for isoamyl ethylene sebific duct or by natural rubber, and it has the expansion contractility; Described capillary tube 24 is medical plastic pipe or metal tube or other medical tubing.
Described malleation needleless connector 1 comprises valve casing 11, valve rod 12, spring 13, valve seat 14.Described valve casing 11 is a three-way valve, and the arm 114 of described three-way valve is arranged on the side of valve casing 11, and described arm 114 upper ends are provided with the 6:100 female Luer 115 of standard, and described female Luer 115 is equipped with the sealing end cap.Only illustrate in the drawings can a plurality of arms be set according to the requirement of reality transfusion on valve casing 11 by an arm 114.Described valve casing 11 and valve seat 14 are hollow structure, and valve casing 11 is set in the outside of valve seat 14, and sealing ring 19 is housed between the two, and by heat seal or the supersonic thermal setting encapsulation of heating.The upper end of described valve casing 11 is provided with liquid inlet 15, and the upper end of liquid inlet 15 is provided with the external screw thread interface of standard.
The top and bottom of described valve rod 12 are respectively equipped with groove, and sealing ring 110 and lower seal 111 are housed respectively in the groove.Be provided with a cavity 116 that is opened on its bottom surface in the described valve rod 12, cavity 116 bottom surfaces are provided with fixed leg 120 on.The end face of described valve rod 12 is an inclined-plane 119, prevents to produce when malleation needleless connector is connected with external connector slippage.
Described valve seat 14 is provided with one and is opened on its vertical cavity, and the bottom surface of described cavity is provided with a following fixed leg 118 that is used for fixing spring 13.The lower end of described valve rod 12 is stretched in the cavity of valve seat 14, and spring 13 is arranged between valve rod 12 and valve seat 14 cavity floor, and the upper end is set on the last fixed leg 120 of valve rod 12, and the lower end is set in down on the fixed leg 118.The bottom of valve seat 14 is provided with and makes inner chamber and extraneous two steam vents 18 that communicate, and the lower end of valve seat 14 is provided with liquid outlet 16, is provided with liquid flow path 17 between liquid inlet 15 and liquid outlet 16, and described liquid flow path 17 is connected with arm 114.Described valve seat 14 bottoms also are provided with liquid-through hole 117, described liquid-through hole 117 is arranged between liquid flow path 17 and the described liquid outlet 16 and with liquid flow path 17 and liquid outlet 16 and is connected, from the liquid inlet 15 and the liquid that flows into of arm 114 enter liquid flow path 17 backs by liquid-through hole 117 influents outlet 16, thereby can carry out the transfusion of multiple liquid simultaneously.
Described malleation needleless connector 1 is structure as a whole with continuous positive pressure spare 2, also can make two above independent structures according to actual needs, is fixed then together or supporting use simultaneously.Described check valve joint 23 also can be non-6:100 joint.Described filter 26 also can be in sebific duct 22 inner bottom, perhaps at check valve joint 23 places, and the perhaps any position on capillary tube 24.The upper surface of valve rod 12 also can be provided with equally distributed three salient points, and described salient point is equilateral triangle and distributes, and sealing ring 110 and lower seal 111 are preferably the butterfly sealing ring on it, and sealing ring 19 is preferably O-ring seal; Steam vent 18 on the valve seat 14 can be provided with a plurality of according to actual needs; The interface of arm 114 upper ends also can be non-6:100 interface.
Embodiment two: a kind of malleation continuous schedule needleless coupling assembling, as shown in Figure 3, Figure 4, the continuous positive pressure spare 2 that comprises connector, is used with connector, but described continuous positive pressure spare 2 comprises the sebific duct 22 of breathing, the capillary tube 24 that is communicated with sebific duct 22, described sebific duct 22 tops are provided with check valve joint 23, described sebific duct 22 forms the medicinal liquid path that is connected with the fluid passage of connector inside with capillary tube 24, on the described medicinal liquid path filter 26 is housed; The outside of described continuous positive pressure spare 2 is provided with shell 21, and sebific duct 22 and capillary tube 24 are loaded in the shell 21, and the check valve joint 23 at sebific duct 22 tops is positioned at the outside of shell 21.Described continuous positive pressure spare 2 also comprises connection tube 25, described connection tube 25 is installed on the lower end of sebific duct 22, described filter 26 is loaded between connection tube 25 and the capillary tube 24, and the inlet of filter 26 links to each other with the outlet of connection tube 25, and the outlet of filter 26 links to each other with the inlet of capillary tube 24.
Described check valve joint 23 is for being with externally threaded 6:100 female Luer; Described sebific duct 22 is made or is made by other macromolecular material for isoamyl ethylene sebific duct or by natural rubber, and it has the expansion contractility; Described capillary tube 24 is medical plastic pipe or metal tube or other medical tubing.
Described malleation needleless connector 1 comprises valve casing 11, valve rod 12, spring 13, valve seat 14.Described valve casing 11 is a two-port valve, and 15 outsides, liquid inlet of described two-port valve are provided with male connection.Described valve casing 11 and valve seat 14 are hollow structure, and valve casing 11 is set in the outside of valve seat 14, and sealing ring 19 is housed between the two, and by heat seal or the supersonic thermal setting encapsulation of heating.The upper end of described valve casing 11 is provided with liquid inlet 15, and the upper end of liquid inlet 15 is provided with the external screw thread interface of standard.
The top and bottom of described valve rod 12 are respectively equipped with groove, and sealing ring 110 and lower seal 111 are housed respectively in the groove.Be provided with a cavity 116 that is opened on its bottom surface in the described valve rod 12, cavity 116 bottom surfaces are provided with fixed leg 120 on.The end face of described valve rod 12 is an inclined-plane 119, prevents to produce when malleation needleless connector is connected with external connector slippage.
Described valve seat 14 is provided with one and is opened on its vertical cavity, and the bottom surface of described cavity is provided with a following fixed leg 118 that is used for fixing spring 13.The lower end of described valve rod 12 is stretched in the cavity of valve seat 14, and spring 13 is arranged between valve rod 12 and valve seat 14 cavity floor, and the upper end is set on the last fixed leg 120 of valve rod 12, and the lower end is set in down on the fixed leg 118.The bottom of valve seat 14 is provided with and makes inner chamber and extraneous two steam vents 18 that communicate, and the lower end of valve seat 14 is provided with liquid outlet 16, is provided with liquid flow path 17 between liquid inlet 15 and liquid outlet 16, and described liquid flow path 17 is connected with arm 114.Described valve seat 14 bottoms also are provided with liquid-through hole 117, described liquid-through hole 117 is arranged between liquid flow path 17 and the described liquid outlet 16 and with liquid flow path 17 and liquid outlet 16 and is connected, from the liquid inlet 15 and the liquid that flows into of arm 114 enter liquid flow path 17 backs by liquid-through hole 117 influents outlet 16, thereby can carry out the transfusion of multiple liquid simultaneously.
Described malleation needleless connector 1 is structure as a whole with continuous positive pressure spare 2, also can make two above independent structures according to actual needs, is fixed then together or supporting use simultaneously.Described check valve joint 23 also can be non-6:100 joint.Described filter 26 also can be in sebific duct 22 inner bottom, perhaps at check valve joint 23 places, and the perhaps any position on capillary tube 24.The upper surface of valve rod 12 also can be provided with equally distributed three salient points, and described salient point is equilateral triangle and distributes, and sealing ring 110 and lower seal 111 are preferably the butterfly sealing ring on it, and sealing ring 19 is preferably O-ring seal; Steam vent 18 on the valve seat 14 can be provided with a plurality of according to actual needs; The interface of arm 114 upper ends also can be non-6:100 interface.
As Fig. 2, shown in Figure 4, when malleation needleless connector 1 is in open mode, check valve joint 23 connects outer infusion set, medicinal liquid enters and makes sebific duct 22 expand in the sebific duct 22, and medicinal liquid slowly is pressed in the liquid flow path 17 of malleation needleless connector 1 by capillary tube 24 under the contraction compressing of sebific duct 22; Simultaneously, the upper end of valve rod 12 is pushed by external connector, valve rod 12 and then compression spring 13, compressed air in the inner chamber 112 of liquid inlet 15 sealings is discharged from steam vent 18, make valve rod 12 stressed reducing in the compression process, sealing ring 110 drops under the liquid inlet 15 on this moment, liquid flow path 17 in the valve is opened, medicinal liquid is 15 inputs from the liquid inlet, flow through liquid flow path 17 in the valve, enter the liquid-through hole 117 of valve seat 14, then in liquid outlet 16 flows into valve seat 14 bottoms link to each other remaining needle or inlying catheter, realize finishing of infusion process, in this process, have a fraction of medicinal liquid and enter the exocoel of opening to liquid inlet 15 113.
Infused at malleation needleless connector 1, sebific duct 22 will continue lentamente medicinal liquid to be pushed, and make and remain normal pressure in the indwelling needle catheter.As Fig. 1, as shown in Figure 3, when malleation needleless connector was in closed condition, spring 13 restored to the original state, and under the restoring force effect of spring 13, moved sealing liquid inlet 15 on the valve rod 12.At this moment, it is big that the volume of inner chamber 112 becomes, inner chamber 112 outer liquid flow path 17 volumes diminish, because the volume-variation of liquid flow path 17, generation promotes normal pressure from liquid residual in the valve to liquid outlet, make the medicinal liquid in the exocoel 113 continue to enter in the liquid-through hole 117 of valve seat 14 by liquid flow path 17, flow out from liquid outlet 16 then, medicinal liquid in the sebific duct 22 discharges fully, has avoided medicinal liquid like this because the caused medicinal liquid of negative pressure that produces when screwing out external connector refluxes even blood refluxes.
Embodiment three: a kind of sustainable malleation needleless coupling assembling, as shown in Figure 5, comprise two lead to fitting 3, with two lead to the continuous positive pressure spare 2 that fitting 3 is used, but described continuous positive pressure spare 2 comprises the sebific duct 22 of breathing, the capillary tube 24 that is communicated with sebific duct 22, described sebific duct 22 tops are provided with check valve joint 23, described sebific duct 22 forms the medicinal liquid path that is connected with two fluid passages that lead to fitting 3 inside with capillary tube 24, on the described medicinal liquid path filter 26 is housed; The outside of described continuous positive pressure spare 2 is provided with shell 21, and sebific duct 22 and capillary tube 24 are loaded in the shell 21, and the check valve joint 23 at sebific duct 22 tops is positioned at the outside of shell 21.Described continuous positive pressure spare 2 also comprises connection tube 25, described connection tube 25 is installed on the lower end of sebific duct 22, described filter 26 is loaded between connection tube 25 and the capillary tube 24, and the inlet of filter 26 links to each other with the outlet of connection tube 25, and the outlet of filter 26 links to each other with the inlet of capillary tube 24.
In the present embodiment, described two lead to fitting 3 and two the independent structures of continuous positive pressure spare 2 for using simultaneously, also can be a plurality of absolute construction that are fixed together, and perhaps are structure as a whole.Described filter 26 is installed on the capillary tube 24, perhaps is installed on sebific duct 22 inner bottom, perhaps is installed on check valve joint 23 places.Described check valve joint 23 is for being with externally threaded 6:100 female Luer, perhaps for being with externally threaded non-6:100 interface.Described sebific duct 22 is an isoamyl ethylene sebific duct, is perhaps made by natural rubber, and it has the expansion contractility; Described capillary tube 24 is medical plastic pipe or metal tube.
Embodiment four: a kind of sustainable malleation needleless coupling assembling, as shown in Figure 6, the continuous positive pressure spare 2 that comprises three-way connector 4, is used with three-way connector 4, but described continuous positive pressure spare 2 comprises the sebific duct 22 of breathing, the capillary tube 24 that is communicated with sebific duct 22, described sebific duct 22 tops are provided with check valve joint 23, described sebific duct 22 forms the medicinal liquid path that is connected with the fluid passage of three-way connector 4 inside with capillary tube 24, on the described medicinal liquid path filter 26 is housed; The outside of described continuous positive pressure spare 2 is provided with shell 21, and sebific duct 22 and capillary tube 24 are loaded in the shell 21, and the check valve joint 23 at sebific duct 22 tops is positioned at the outside of shell 21.Described continuous positive pressure spare 2 also comprises connection tube 25, described connection tube 25 is installed on the lower end of sebific duct 22, described filter 26 is loaded between connection tube 25 and the capillary tube 24, and the inlet of filter 26 links to each other with the outlet of connection tube 25, and the outlet of filter 26 links to each other with the inlet of capillary tube 24.
In the present embodiment, described three-way connector 4 is two independent structures using simultaneously with continuous positive pressure spare 2, also can perhaps be structure as a whole for a plurality of absolute construction that are fixed together.Described filter 26 is installed on the capillary tube 24, perhaps is installed on sebific duct 22 inner bottom, perhaps is installed on check valve joint 23 places.Described check valve joint 23 is for being with externally threaded 6:100 female Luer, perhaps for being with externally threaded non-6:100 interface.Described sebific duct 22 is an isoamyl ethylene sebific duct, is perhaps made by natural rubber, and it has the expansion contractility; Described capillary tube 24 is medical plastic pipe or metal tube.
This utility model has reduced the repeated multiple times tube sealing, the washing pipe program, alleviated nursing work load, improved work efficiency, also reduced simultaneously phlebitic incidence rate, simultaneously when transfusion device or syringe are extracted, malleation needleless connector can be pushed forward into medicinal liquid moment, sebific duct is slowly continual to be pushed forward into medicinal liquid, make and remaining pressure in the indwelling needle catheter, finish until the release of sebific duct inner liquid medicine, do not need tube sealing fully, this moment, remaining needle reached the time of replacing, make whole therapeutic process avoid the blood backflow to form thrombosis and cause plugging, alleviated the misery of sufferer; This utility model adopts the needleless operation, has reduced medical personnel's acupuncture risk.
Below only be concrete exemplary applications of the present utility model, protection domain of the present utility model is not constituted any limitation.In addition to the implementation, this utility model can also have other embodiment.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop within this utility model scope required for protection.
Claims (10)
1. sustainable malleation needleless coupling assembling, it is characterized in that: the continuous positive pressure spare (2) that comprises connector, is used with connector, described continuous positive pressure spare (2) but comprise the sebific duct (22) of breathing, the capillary tube (24) that is communicated with sebific duct (22), described sebific duct (22) top is provided with check valve joint (23), described sebific duct (22) forms the medicinal liquid path that is connected with the fluid passage of connector inside with capillary tube (24), and filter (26) is housed on the described medicinal liquid path.
2. sustainable malleation needleless coupling assembling according to claim 1, it is characterized in that: the outside of described continuous positive pressure spare (2) is provided with shell (21), sebific duct (22) and capillary tube (24) are loaded in the shell (21), and the check valve joint (23) at sebific duct (22) top is positioned at the outside of shell (21).
3. sustainable malleation needleless coupling assembling according to claim 1 is characterized in that: described connector is that malleation needleless connector (1) or two leads to fitting (3) or three-way connector (4); Described connector and continuous positive pressure spare (2) are structure as a whole, and perhaps a plurality of absolute construction for being fixed together perhaps are a plurality of independent structure of using simultaneously.
4. sustainable malleation needleless coupling assembling according to claim 3 is characterized in that: described malleation needleless connector (1) comprises valve casing (11), valve rod (12), spring (13), valve seat (14); Described valve casing (11) and valve seat (14) are hollow structure, valve casing (11) is set in the outside of valve seat (14), and be tightly connected with valve seat (14), the upper end of described valve casing (11) is provided with liquid inlet (15), the lower end of valve seat (14) is provided with liquid outlet (16), be provided with liquid flow path (17) between liquid inlet (15) and liquid outlet (16), the bottom of described valve seat (14) is provided with steam vent (18); The lower end of described valve rod (12) is stretched in the cavity of valve seat (14), and described spring (13) is arranged between valve rod (12) and valve seat (14) cavity floor; The top and bottom of described valve rod (12) are respectively equipped with groove, sealing ring (110) and lower seal (111) are housed respectively in the groove, and described lower seal (111) is divided into the cavity of valve seat (14) to inner chamber (112) of liquid inlet (15) sealing and the exocoel of opening to liquid inlet (15) (113).
5. sustainable malleation needleless coupling assembling according to claim 1, it is characterized in that: described filter (26) is installed on the capillary tube (24), perhaps is installed on sebific duct (22) inner bottom, perhaps is installed on check valve joint (23) and locates.
6. sustainable malleation needleless coupling assembling according to claim 1, it is characterized in that: described continuous positive pressure spare (2) also comprises connection tube (25), described connection tube (25) is installed on the lower end of sebific duct (22), described filter (26) is loaded between connection tube (25) and the capillary tube (24), the inlet of filter (26) links to each other with the outlet of connection tube (25), and the outlet of filter (26) links to each other with the inlet of capillary tube (24).
7. according to claim 1 or 2 or 5 described sustainable malleation needleless coupling assemblings, it is characterized in that: described check valve joint (23) is for being with externally threaded 6:100 female Luer, perhaps for being with externally threaded non-6:100 interface.
8. according to claim 1 or 2 or 5 or 6 described sustainable malleation needleless coupling assemblings, it is characterized in that: described sebific duct (22) is an isoamyl ethylene sebific duct, is perhaps made by natural rubber, and it has the expansion contractility; Described capillary tube (24) is medical plastic pipe or metal tube.
9. sustainable malleation needleless coupling assembling according to claim 4 is characterized in that: described valve casing (11) is a two-port valve, and the liquid inlet of described two-port valve (15) outside is provided with male connection; Perhaps valve casing (11) is a three-way valve, the outside, the liquid inlet of three-way valve (15) is provided with male connection, the arm of three-way valve (114) is connected with liquid flow path (17), described arm (114) upper end is provided with the 6:100 female Luer (115) or the non-6:100 interface of standard, and described female Luer (115) is equipped with the sealing end cap.
10. sustainable malleation needleless coupling assembling according to claim 4 is characterized in that: be provided with a cavity (116) that is opened on its bottom surface in the described valve rod (12), cavity (116) bottom surface is provided with fixed leg on (120); The last sealing ring (110) of described valve rod (12) is an interference fit with the inwall of described liquid inlet (15), is interference fit between the inwall of the cavity of lower seal (111) and valve seat (14); The end face of described valve rod (12) is an inclined-plane (119), and perhaps end face is provided with and is three salient points that equilateral triangle distributes; Described valve seat (14) bottom is provided with several voltage supply steam vent (18) that air discharges that contracts, described valve seat (14) bottom is provided with liquid-through hole (117), described liquid-through hole (117) is arranged between liquid flow path (17) and the described liquid outlet (16) and with liquid flow path (17) and liquid outlet (16) and is connected, from the effusive liquid of liquid flow path (17) by liquid-through hole (117) influent outlet (16); The cavity floor of described valve seat (14) is provided with fixed leg (118); Described spring (13) upper end is set on the last fixed leg (120) of valve rod (12), and the lower end is set on the following fixed leg (118) of valve seat (14); Between described valve seat (14) and the valve casing (11) sealing ring (119) is housed, by heat seal or the supersonic thermal setting encapsulation of heating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205306152U CN201791157U (en) | 2010-09-16 | 2010-09-16 | Sustainable positive pressure needleless connecting component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205306152U CN201791157U (en) | 2010-09-16 | 2010-09-16 | Sustainable positive pressure needleless connecting component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201791157U true CN201791157U (en) | 2011-04-13 |
Family
ID=43846076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205306152U Expired - Lifetime CN201791157U (en) | 2010-09-16 | 2010-09-16 | Sustainable positive pressure needleless connecting component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201791157U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103071203A (en) * | 2012-12-12 | 2013-05-01 | 山东新华安得医疗用品有限公司 | Anti-acupuncture intravenous detaining needle |
| CN106730147A (en) * | 2017-02-15 | 2017-05-31 | 苏州鑫康道医疗科技有限公司 | Continuous positive pressure remaining needle |
| CN107469191A (en) * | 2017-09-26 | 2017-12-15 | 湖北楚天药业有限责任公司 | A kind of anti-venous indwelling needle |
| CN111956949A (en) * | 2020-08-21 | 2020-11-20 | 宁湘龙 | Continuous positive pressure infusion joint |
-
2010
- 2010-09-16 CN CN2010205306152U patent/CN201791157U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103071203A (en) * | 2012-12-12 | 2013-05-01 | 山东新华安得医疗用品有限公司 | Anti-acupuncture intravenous detaining needle |
| CN106730147A (en) * | 2017-02-15 | 2017-05-31 | 苏州鑫康道医疗科技有限公司 | Continuous positive pressure remaining needle |
| CN107469191A (en) * | 2017-09-26 | 2017-12-15 | 湖北楚天药业有限责任公司 | A kind of anti-venous indwelling needle |
| CN111956949A (en) * | 2020-08-21 | 2020-11-20 | 宁湘龙 | Continuous positive pressure infusion joint |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202751639U (en) | Positive-pressure and pin-free connection piece | |
| JP5507564B2 (en) | Closed male luer device to minimize fluid leakage during connection and disconnection | |
| CN103212154A (en) | One-way positive valve | |
| CN202397883U (en) | Continuous and positive pressure non-needle connecting assembly | |
| CN201791157U (en) | Sustainable positive pressure needleless connecting component | |
| CN202982924U (en) | Needleless connecting assembly | |
| CN201088780Y (en) | Unidirectional positive pressure valve | |
| CN101648049B (en) | Medical forward flow connection device | |
| CN201791158U (en) | Positive pressure needle-less connecting piece | |
| CN201356857Y (en) | Connector pipe type positive pressure vein remaining needle | |
| CN203609712U (en) | Long catheter structure for intravenous indwelling needle | |
| CN101912664A (en) | Disposable positive pressure joint | |
| CN102188761B (en) | A kind of positive-pressure pinch valve | |
| CN201061639Y (en) | Non-needle enclosed transfusion joint | |
| CN202459844U (en) | One-way positive valve | |
| CN201179271Y (en) | One-way positive pressure valve | |
| CN209984794U (en) | Pressure extension pipe with anti-reflux function | |
| CN201248965Y (en) | Medical connecting device | |
| CN101357250B (en) | Connecting device for medical purposes | |
| CN209596326U (en) | A kind of needle assembly and the remaining needle containing the needle assembly | |
| CN109172936A (en) | A kind of portable infusion apparatus | |
| CN204208160U (en) | Disposable double nip stomach tube | |
| CN203694233U (en) | Injector preventing backflow | |
| CN202822287U (en) | Needles-free joint | |
| CN103418048B (en) | Needleless joint |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SUZHOU LINHUA MEDICAL DEVICES CO., LTD. Free format text: FORMER OWNER: WU LINYUAN Effective date: 20120711 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 215101 SUZHOU, JIANGSU PROVINCE TO: 215122 SUZHOU, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120711 Address after: 215122, Jiangsu, Suzhou Province, only 3 new road, Ting Town Patentee after: Linhua Medical Appliances Co., Ltd., Suzhou Address before: Wuzhong District Mudu town of Suzhou city in Jiangsu Province, 215101 Shandong Road No. 98 Patentee before: Wu Linyuan |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215122, Jiangsu, Suzhou Province, only 3 new road, Ting Town Patentee after: SUZHOU LINHUA MEDICAL INSTRUMENT CO., LTD. Address before: 215122, Jiangsu, Suzhou Province, only 3 new road, Ting Town Patentee before: Linhua Medical Appliances Co., Ltd., Suzhou |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110413 |
|
| CX01 | Expiry of patent term |